Double-lift open-shed jacquard-machine.



No. 838,279. PATENTED DEC. 11, 1906.-

' G. SENN.

DOUBLE LIFT OPEN- SHED JAGQUARD MACHINE.

APPLICATION FILED JUNE 19, 1905. V

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PATENTED DEG. 11, 1906.

C. .SENN. DOUBLE LIFT OPEN SHED JAGQUARD MACHINE.

APPLICATION FILED JUNE 19,1906.

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No. 838,279. PATENTED 1130. 11, 1906.

0. SENN. DOUBLE LIFT OPEN SHED JAGQUARD MACHINE.

APPLIOATION IILBD JUNE 19,1905.

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UNITED s'rarn s grnnr OFFICE.

OASIAR SENN, OF RUTI, SWITZERLAND, ASSIG-NOR TO MASGHINEN- FABRIK RIITIVORLWIALS OASPAR HONEGGER, OF RUTI, SWITZER- LAND.

Specification of Letters Patent.

Patented Dec. 11, 1906.

Application filed June 19,1905. $erial BIO-265,909.

T0 Lb whom, it may concern:

Be it known that I, CASPAR SENN, a citizen of the Republic ofSwitzerland, residing in Riiti, in the Canton of Zurich, Republic ofSwitzerland, (whose post-oflice address is Ruti, Canton of Zurich,) haveinvented certain new and useful Improvements in Double-Lift Open-ShedJacquard-Machines and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and tocharacters of reference marked thereon, which form a part of thisspecification.

I have applied for patent in Germany on March 3, 1905; in France, on May19, 1905; in Italy, on May 23, 1905 in Austria, on May 23, 1905; inSwitzerland, on May 24, 1905; in Hungary, on May 26, 1905, and in GreatBritain on June 1, 1905.

Double-lift open-shed jacquard-machines in which the hooks passing fromthe highest to the lowest position are prevented from engaging with therising griif-blades in that the hooks at the moment in which they wouldengage with the rising blades are pressed aside by bars from theseblades are known. In this arrangement, however, the bars must accompanythe blades throughout their whole movement and at the right moment arepushed so far aside as is necessary to press aside the descending hooksproper, so that the latter are enabled to pass by the rising bladesunhindered. In order to obtain the necessary space for the displacementof the bars, either the usual space between the series of hooks must beincreased or the gTiff-blades, instead of being arranged as usual theone behind the other, must be arranged the one above the other. Thefirstmentioned arrangement necessitates a greater depth of thejacquard-machine, and therefore longer needles, while the latterarrangement requires a greater height of the jacquard machine andcorrespondingly longer hooks. Both arrangements restrict the rapidworking, and consequently the efliciency, of the machine.

In an open-shed jacquard-machine according to the present invention thedeviating bars do not accompany the griff-blades down to the lowestposition, and therefore at the moment of the pushing aside of the hooksmake no side movements. The side movements of the deviating-bars arecompleted after the deviation of the hooks and solely for the purpose ofgiving room to the hooks proper in the raised position for suspension onthe rising grilf-blades. This enables the griff-blades to be arrangedone beside the otheras, for example, in the ordinary double-liftmachinewithout it being necessary to have longer needles or longer hooksor hooks of complicated construction, whereby, above all, a greaterspeed in the working and a corresponding increasein efficiency of themachine is attained.

One form of construction of the invention is shown in the accompanyingdrawings, in Which- Figure 1 shows a front view; Fig. 2, the half of aside view, and Fig. 3 the other half of the same. Figs. 4, 5, 6, and 7diagrammatically illustrate the method of Working.

The machine has double hooks a and b, the hooks proper of which aredesignated by a a) and 6 b 6 e c e are the corresponding needles; k, thecylinder Z, the cards.

The griff-blades f f f y are arranged in the usual way in the griff r,and the griifblades 7L 7L2 h h in the griff Both griffs are moved up andin common by a rocking lever m, fitted to a shaft n and connected to theframes by connectin -rods 0 0 and rods p p, suitably guided in t e frameof the machine, the arrangement being such that when the one frame islowered the other is raised, and vice versa. The shaft n is operated inthe usual way.

Above the blades f f 2 f 3 f 4 are deviatingbars g g g g, which arecarried by a common yoke g. This yoke is raised on the upward movementof the grid 1' by the arms r, arranged on the latter griff, engagingstops 'w w on the yoke. Two guiding-rollers y, arranged on the yoke g,run in curved tracks 2 arranged on the frame of the machine, so that theyoke with its barsis displaced toward the left. Above the grid-blades hh h 7% there are deviating-bars i i 11 i, which are also maintained in acommon support i.

This is so guided in fork-guides g g arranged on the grifi q, that itcan be displaced in the same. Rollers a, fitted to the supof the bottomrest or bottom board.

Fig. 4 shows the position of the parts when the griff-blades f f and thehook at are in the lowered position and the griff-blades h 72/ and thehook I) are in the raised position. The needles 6 e are in holes in thecard, while the lowered hook a rests on the bar 0 of the bottom board bymeans of a hook proper or catch a and the hook proper or catch 6 of theraised hook I) rests over the open-shed blade (1 The deviating-bar yokeg is inthe lowest position. The deviating-bars g g are situatedvertically over the blades f f. The deviating-bar support 'L and thedeviating-bars t i are in the highest position in the position shown.The bars i i are situated sidewise over the corresponding blades h if.It is now supposed in Fig. 5 that the cylinder is is rotated in theusual manner, ressed against the needles, and both the nee les 6 e arepushed forward. The displacement of the needle 6 effects a turning orpivoting of the hook at on the edge of the bottom rest-rod 0, so thatthe upper hooks proper, a 0, are out of the reach of the upper edge ofthe blades f and h. The displacement of the needle 6 effects a turningof the hook I) on the edge of the blade 72?, which is rendered possibleby the arrangement of a slot in thehook bottom board 0 and by bends band b in the hook. Fig. 6 shows the position of the parts after thecylinder has been moved back-again, and the blades f f are moving upwardand the blades h h are moving downward. The hooka remains in the lowestposition, while the hook I), with the blades h 72?, descends. If theblades f f 2 complete the upper half of their movement, the arms 1", &c.strike the stops w 10 &c., and the yoke g, with the bars g 9 asindicated by the arrow in Fig. 6, proceeds in advance, which causes thehook proper, b, of the descending hook I) to encounter the slopingsurface of the bar g by which it is pushed to the right, so that thehook I) cannot engage with the edge of the rising blade f When the bladeapproaches its highest position, then the yoke g performs a sidemovement relative to the support 1', as indicated by arrows in Figs. 4and 5, in order to free the space for the rising blade in the endposition. On the frame g with blades h k descending the yoke t with thecorresponding bars i 2' follows after without working. If the frame ghas completed about half its course, then the projections s s on theyoke or support 'L strike against the projections t t on the frame ofthe machine, so that the support t is stopped. During this time,however, the rollers working in guides 12 '1) occasion a displacement ofthe support toward the right.

Fig. 7 shows the action-of the machine if the hook I) and the blades f fshould pass into the lowest position and the blades h k into the highestposition. In this case the bar i occasions a deviation of the descendinghook proper, 12 from the edge of the rising blade k When the blades h happroach their highest position, the rest 4; is pushed by the curvedguides v '0 sidewise again for the purpose above mentioned. When theframe 1' on descending has completed about half of its course, the stops20 90 arranged on the yoke g, meet the arms t t of the frame of themachine and so hold the yoke 9 fast. In the meantime, however, the yokeis again pushed to the right by means of the rollers y y running in thetracks 2. The displacement of the yokes g and 4, may be effected in anyother suitable manner.

As the deviating-bars do not accompany the griff blades throughout theirwhole course, the arrangement of the ordinary double-lift machine can beretained without increase in the height of the machine or the length ofthe hooks. As the distance to be traveled over by the blades is short,the speed of the blades and the efficiency of the machine can beincreased. The speed of the blades can therefore be comparatively high,as the hooks are not, as it were, submitted to any springing and areonly exposed to a very slight brake action and friction in the eyes ofthe needles through which they pass even in the pushed-back position ofthe needle, so that by downward movement they are always able to followthe blades, even at high speed of the blades. This could not be attainedif the lower parts of the hooks did not work loosely in the bottomboard.

What I claim is- 1. In a double-lift jacquard-machine, the combinationof the griffs, sets of deviatingbars adapted to be raised by the griffsduring a portion of their travel, means for imparting lateral motion tothe deviating-bars, and means for arresting them during the downwardtravel of the griifs, for the purpose hereinbefore set forth.

2. In a double-lift,jacquard-machine, the

combination of the griffs, sets of deviating- 1 bars adapted to beraised by the grifis during a portion of their travel, means forirnparting lateral motion to the deviating-bars,

bars suspended above their respective grifi's by common yokes,projections on the yokes adapted to be engaged by the projections on thegriffs during the upward travel of the latter, means for impartinglateral motion to the deviating-bars, and stops for arresting thedeviatingbars during the later part of the downward travel of thegrifis, substantially as and for the purpose set forth.

4. In a double-lift jacquard-machine, the combination of the griffs,sets of deviatingbars adapted to be raised and lowered by the respectivegriffs during part of their travel, rollers on the yokes supporting thebars, cam-grooves on the machine-frame for receiving said rollers andimparting lateral movement to the bars, and means for arrest- 1 g thebars during part of the downward l travel of the griffs, substantiallyas and for the purpose set forth.

5. In a double-lift jacquard-machine, the combination of the griflstwosets of deviatingbars, slotted guideson one grid for the framesupport ofone set of bars, springs securing the said frame to said grifl', andfixed stops for arresting both sets of bars during the later part of thedescent of the grifi's and means for imparting lateral movement to thebars, substantially as and for the purpose set forth.

6. In a double-lift jacquard-machine, the

combination of the grifl's, deviating bars.

adaptedto be raised and lowered by the grili's, means for arresting saidbars for the purpose of preventing them following the grifl's into thelowest position, means for imparting lateral movement to the bars, afterthey have deviated the hooks, for the purpose of leaving room for therising griffblades, substantially as described.

7. In a double-lift jacquardmachine, the combination of the griffs,deviating bars adapted to be raised and lowered by the grifi's, meansfor arresting said bars for the purpose of preventing them following thegrifi's into the lowest position; means for imparting lateral movementto the bars, after they have deviated the hooks, to clear the risingriff-blades, double hooks having narrow ower ends and a bottom boardhaving spaces to permit pivoting of the hooks when in either the lowestor highest position.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

CASPAR SENN.

INitnesses HERMANN HUBER, A. LIEBERKNEOI-IT.

